1 2 3 4 5<!doctype html> 6<html lang="en"> 7<head> 8 <meta charset="utf-8" /> 9 <meta name="viewport" content="width=device-width, initial-scale=1" /> 10 <title>ImageMagick - JP2 Encoding Options</title> 11 <meta name="application-name" content="ImageMagick" /> 12 <meta name="description" content="Use ImageMagick® to create, edit, compose, and convert digital images. 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As an example, suppose you are interested in these options:</p> 96 97<ul> 98<li>code blocks are 64 samples in width and 32 samples in height</li> 99<li>no multicomponent transform</li> 100<li>4 resolution levels for each component</li> 101<li>compression is lossy at 64:1</li> 102</ul> 103 104<p>Use this command to convert a JPEG-2000 image to the PNG image format:</p> 105 106<pre class="highlight"><code>magick wizard.jp2 wizard.png 107</code></pre> 108 109<p>Let's convert a JPEG image to a lossless JPEG-2000 image:</p> 110 111<pre class="highlight"><code>magick wizard.jpg -quality 0 wizard.jp2 112</code></pre> 113 114<p>Here we extract an area from the image:</p> 115 116<pre class="highlight"><code>magick 'wizard.jp2[640x480+0+0]' wizard.png 117</code></pre> 118 119<p>Extract a particular tile from the image:</p> 120 121<pre class="highlight"><code>magick 'wizard.jp2[2]' wizard.png 122</code></pre> 123 124<p>Specify a subsampling factor:</p> 125 126<pre class="highlight"><code>magick wizard.png -colorspace YUV -sampling-factor 2,2 wizard.jp2 127</code></pre> 128 129<p>Save a tiled JPEG-2000 image:</p> 130 131<pre class="highlight"><code>magick wizard.png 'wizard.png[512x512]' 132</code></pre> 133 134<p>Write a digital Cinema 4K profile compliant codestream:</p> 135 136<pre class="highlight"><code>magick wizard.png -resize 4096x2160! -depth 12 wizard.jp2 137</code></pre> 138 139<p>Here is a complete list of JPEG-2000 decoding options:</p> 140 141<div class="table-responsive" style="font-size:87.5% !important;"> 142<table class="table table-sm table-hover"> 143 <tr> 144 <td>jp2:quality-layers=<var>x</var></td> 145 <td>set the maximum number of quality layers to decode.</td> 146 </tr> 147 <tr> 148 <td>jp2:reduce-factor=<var>x</var></td> 149 <td>set the number of highest resolution levels to be discarded.</td> 150 </tr> 151</table></div> 152 153<p>Here is a complete list of JPEG-2000 encoding options:</p> 154 155<div class="table-responsive" style="font-size:87.5% !important;"> 156<table class="table table-sm table-hover"> 157 <tr> 158 <td>jp2:number-resolutions=<var>x</var></td> 159 <td>number of resolutions to encode.</td> 160 </tr> 161 <tr> 162 <td>jp2:quality=<var>x</var>,<var>x</var>,...</td> 163 <td>set the quality layer PSNR, given in dB. The order is from left to right in ascending order. The default is a single lossless quality layer.</td> 164 </tr> 165 <tr> 166 <td>jp2:rate=<var>x</var>,<var>x</var>,...</td> 167 <td>the compression ratio values. Each value is a factor of compression, thus 20 means 20 times compressed. The order is from left to right in descending order. A final lossless quality layer is signified by the value 1. The default is a single lossless quality layer.</td> 168 </tr> 169 <tr> 170 <td>jp2:progression-order=<var>x</var></td> 171 <td>choose from LRCP, RLCP, RPCL, PCRL or CPRL.</td> 172 </tr> 173</table></div> 174</div> 175 </div> 176 </main><!-- /.container --> 177 <footer class="magick-footer"> 178 <div class="container-fluid"> 179 <a href="security-policy.html">Security</a> • 180 <a href="news.html">News</a> 181 182 <a href="jp2.html#"><img class="d-inline" id="wand" alt="And Now a Touch of Magick" width="16" height="16" src="../images/wand.ico"/></a> 183 184 <a href="links.html">Related</a> • 185 <a href="sitemap.html">Sitemap</a> 186 <br/> 187 <a href="support.html">Sponsor</a> • 188 <a href="cite.html">Cite</a> • 189 <a href="http://pgp.mit.edu/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> • 190 <a href="https://imagemagick.org/script/contact.php">Contact Us</a> 191 <br/> 192 <a href="https://github.com/imagemagick/imagemagick" target="_blank" rel="noopener" aria-label="GitHub"><svg xmlns="http://www.w3.org/2000/svg" class="navbar-nav-svg" viewBox="0 0 512 499.36" width="2%" height="2%" role="img" focusable="false"><title>GitHub</title><path fill="currentColor" fill-rule="evenodd" d="M256 0C114.64 0 0 114.61 0 256c0 113.09 73.34 209 175.08 242.9 12.8 2.35 17.47-5.56 17.47-12.34 0-6.08-.22-22.18-.35-43.54-71.2 15.49-86.2-34.34-86.2-34.34-11.64-29.57-28.42-37.45-28.42-37.45-23.27-15.84 1.73-15.55 1.73-15.55 25.69 1.81 39.21 26.38 39.21 26.38 22.84 39.12 59.92 27.82 74.5 21.27 2.33-16.54 8.94-27.82 16.25-34.22-56.84-6.43-116.6-28.43-116.6-126.49 0-27.95 10-50.8 26.35-68.69-2.63-6.48-11.42-32.5 2.51-67.75 0 0 21.49-6.88 70.4 26.24a242.65 242.65 0 0 1 128.18 0c48.87-33.13 70.33-26.24 70.33-26.24 14 35.25 5.18 61.27 2.55 67.75 16.41 17.9 26.31 40.75 26.31 68.69 0 98.35-59.85 120-116.88 126.32 9.19 7.9 17.38 23.53 17.38 47.41 0 34.22-.31 61.83-.31 70.23 0 6.85 4.61 14.81 17.6 12.31C438.72 464.97 512 369.08 512 256.02 512 114.62 397.37 0 256 0z"/></svg></a> • 193 <a href="https://twitter.com/imagemagick" target="_blank" rel="noopener" aria-label="Twitter"><svg xmlns="http://www.w3.org/2000/svg" class="navbar-nav-svg" viewBox="0 0 512 416.32" width="2%" height="2%" role="img" focusable="false"><title>Twitter</title><path fill="currentColor" d="M160.83 416.32c193.2 0 298.92-160.22 298.92-298.92 0-4.51 0-9-.2-13.52A214 214 0 0 0 512 49.38a212.93 212.93 0 0 1-60.44 16.6 105.7 105.7 0 0 0 46.3-58.19 209 209 0 0 1-66.79 25.37 105.09 105.09 0 0 0-181.73 71.91 116.12 116.12 0 0 0 2.66 24c-87.28-4.3-164.73-46.3-216.56-109.82A105.48 105.48 0 0 0 68 159.6a106.27 106.27 0 0 1-47.53-13.11v1.43a105.28 105.28 0 0 0 84.21 103.06 105.67 105.67 0 0 1-47.33 1.84 105.06 105.06 0 0 0 98.14 72.94A210.72 210.72 0 0 1 25 370.84a202.17 202.17 0 0 1-25-1.43 298.85 298.85 0 0 0 160.83 46.92"/></svg></a> 194 <br/> 195 <small>© 1999-2021 ImageMagick Studio LLC</small> 196 </div> 197 </footer> 198 199 <!-- Javascript assets --> 200 <script src="assets/magick.js" ></script> 201 </body> 202</html> 203<!-- Magick Cache 13th February 2021 11:37 -->
